Right now I am grouping the cells together. I was able to balance the capacities within ±0.15ah which is probably withing the uncertainty of my testing.
The most time consuming thing is peeling off all the stickers and getting all the pressure sensitive adhesive off. PSA is not known for it's high conductivity. :) So I get to sit in front of the TV with rag and some rubbing alcohol.
For making my connections I was able to modify a 3 hole punch with a simple MDF block to make all the holes in the tabs.
Works well but I might put a better spring in the punches because they often get stuck and I have to wiggle the cell to get it back out.
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